Power interface, mobile terminal, and electronic device

ABSTRACT

A power interface, a mobile terminal, and an electronic device are disclosed. The power interface includes a housing, a connection body, and a partition piece. The connection body is arranged in the housing, configured to be connected to a circuit board, and includes at least one power-pin assembly. Each power-pin assembly includes a pair of power pins spaced apart from each other. The partition piece is sandwiched between the pair of power pins, and includes a tail end connected to the circuit board and a head end away from the circuit board and opposite to the tail end. The tail end is spaced apart from the housing and connected to the connection body.

CROSS REFERENCE TO RELATED APPLICATIONS

The present application is a continuation-in-part of International (PCT)Patent Application No. PCT/CN2017/082261 filed Apr. 27, 2017, whichclaims foreign priority of Chinese Patent Application No.201620806868.5, filed on Jul. 27, 2016, the entire contents of which arehereby incorporated by reference in their entireties.

TECHNICAL FIELD

The described embodiments relate to communication technology, and inparticular to a power interface, a mobile terminal, and an electronicdevice.

BACKGROUND

With the continuous improvement of living conditions, mobile phones havebecome essential communication tools for people. In order to meet therequirements of users and improve the market competitiveness of themobile phones, on one hand, researchers and developers continue toimprove the performance of mobile phones; on the other hand, researchersand developers continue to improve and optimize the appearance of mobilephones. Charging sockets are important components for the mobile phones.On one hand, when charging the mobile phones, the mobile phones needs tobe charged via the charging sockets; on the other hand, it is possibleto achieve data transmission between the mobile phones and other devicesby means of the charging sockets.

SUMMARY

According to an aspect of the present disclosure, a power interface maybe provided. The power interface may include a housing, a connectionbody, and a partition piece. The connection body may be arranged in thehousing and configured to be connected to a circuit board. Theconnection body may include at least one power-pin assembly. Each of theat least one power-pin assembly may include a pair of power pins spacedapart from each other. The partition piece may be sandwiched between thepair of power pins and include a tail end and a head end. The tail endmay be connected to the circuit board, and spaced apart from the housingand connected to the connection body. The head end may be away from thecircuit board and opposite to the tail end.

According to another aspect, a mobile terminal is further provided. Themobile terminal may include a circuit board, a housing, at least onepower-pin assembly, and a partition piece. The at least one power-pinassembly may be arranged in the housing and configured to be connectedto the circuit board. Each of the at least one power-pin assembly mayinclude a pair of power pins spaced apart from each other. The partitionpiece may be sandwiched between the pair of power pins and include atail end and a head end. The tail end may be connected to the circuitboard, and spaced apart from the housing and connected to the at leastone power-pin assembly. The head end may be away from the circuit boardand opposite to the tail end. According to a further aspect, anelectronic device may be provided. The electronic device may include acircuit board and a power interface configured to be connected to thecircuit board. The power interface may include a housing, at least onepower-pin assembly, a partition piece, and an insulation layer. The atleast one power-pin assembly may be arranged in the housing andconfigured to be connected to the circuit board. Each of the at leastone power-pin assembly may include a pair of power pins spaced apartfrom each other. The partition piece may be sandwiched between the pairof power pins, and different from the pair of power pins. The partitionpiece may include a tail end and a head end. The tail end may beconnected to the circuit board, and spaced apart from the housing andconnected to the at least one power-pin assembly. The head end may beaway from the circuit board and opposite to the tail end. The insulationlayer may be sandwiched between the partition piece and each of the pairof power pins, such that the partition piece and the at least onepower-pin assembly are insulated from each other by the insulationlayer.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an explosive view of a power interface according to anembodiment of the present disclosure.

FIG. 2 is a partially enlarged view of portion A of FIG. 1.

FIG. 3 is a structural view of a partition piece in the power-pinassembly according to some embodiments of the present disclosure.

FIG. 4 is a cutaway view of the power interface according to someembodiments of the present disclosure.

FIG. 5 is a cutaway view of the power interface viewing in another angleaccording to some embodiments of the present disclosure.

FIG. 6 is a cutaway view of the power interface viewing in yet anotherangle according to some embodiments of the present disclosure.

FIG. 7 is a cutaway view of the power interface viewing in a furtherangle according to some embodiments of the present disclosure.

FIG. 8 is a partially enlarged view of portion B of FIG. 7.

FIG. 9 is a cutaway view of the power interface viewing in still afurther angle according to some embodiments of the present disclosure.

FIG. 10 is a partially enlarged view of portion C of FIG. 9.

FIG. 11 is a perspective view of a power-pin assembly according to someembodiments of the present disclosure.

DETAILED DESCRIPTION

Embodiments of the present disclosure will be described in detail below,and examples of the embodiments will be illustrated in the accompanyingdrawings. The embodiments described below with reference to the drawingsare illustrative and are intended to explain the present disclosure, andcannot be construed as a limitation to the present disclosure.

In the description of the present disclosure, it is to be understoodthat terms such as “top”, “bottom”, “front”, “rear”, “left”, “right”,“inner”, “outer”, “circumference”, and the like, refer to theorientations and locational relations illustrated in the accompanyingdrawings. Thus, these terms used here are only for describing thepresent disclosure and for describing in a simple manner, and are notintended to indicate or imply that the device or the elements arearranged to locate at the specific directions or are structured andperformed in the specific directions, which could not to be understoodas limiting the present disclosure.

In addition, terms such as “first”, “second”, and the like are usedherein for purposes of description, and are not intended to indicate orimply relative importance or significance or to imply the number ofindicated technical features. Thus, the feature defined with “first”,“second”, and the like may include one or more of such a feature. In thedescription of the present disclosure, “a plurality of” means two ormore, such as two, three, and the like, unless specified otherwise.

In the present disclosure, unless specified or limited, otherwise, terms“mounted”, “connected”, “coupled”, “fixed”, and the like are used in abroad sense, and may include, for example, fixed connections, detachableconnections, or integral connections; may also be mechanical orelectrical connections; may also be direct connections or indirectconnections via intervening structures; may also be inner communicationsof two elements, as can be understood by one skilled in the artdepending on specific contexts.

According to an aspect of the present disclosure, a power interface maybe provided. The power interface may include a housing, a connectionbody, and a partition piece. The connection body may be arranged in thehousing and configured to be connected to a circuit board. Theconnection body may include at least one power-pin assembly. Each of theat least one power-pin assembly may include a pair of power pins spacedapart from each other. The partition piece may be sandwiched between thepair of power pins and include a tail end and a head end. The tail endmay be connected to the circuit board, and spaced apart from the housingand connected to the connection body. The head end may be away from thecircuit board and opposite to the tail end.

In some embodiments, a reinforcing protrusion may protrude from an outersurface of the head end in a direction away from a center of the powerinterface.

In some embodiments, the reinforcing protrusion may be located on atleast one of a side wall face and a front end face of the head end.

In some embodiments, the partition piece may include a connectionportion connected between the head end and the tail end; a notch isdefined in the connection portion.

In some embodiments, a crimping may be arranged at the tail end, and thecrimping is bent in a direction towards one of the pair of power pins.

In some embodiments, at least one of the tail end and the head end maydefine a through hole, and a reinforcing rib may be arranged in thethrough hole. In some embodiments, the power interface may furtherinclude an encapsulation member, wherein the partition piece and theconnection body are wrapped by the encapsulation member.

In some embodiments, the encapsulation member may be made ofelectrically insulative and heat-conductive material.

In some embodiments, the encapsulation member may include a firstencapsulation portion and a second encapsulation portion connected tothe first encapsulation portion. The second encapsulation portion maydefine a plurality of receiving groove, and a plurality of embeddingprotrusions may be arranged on the first encapsulation portion Theplurality of receiving grooves may be in one-to-one correspondence withthe plurality of embedding protrusions.

In some embodiments, a first pad and a second pad spaced apart from eachother may be arranged on the circuit board. The housing may be welded onthe first pad, and the tail end may be welded on the second pad.

In some embodiments, the connection body may further include a data pin.At least one of the pair of power pins may include an expanded portion,and the expanded portion may have a cross-sectional area larger thanthat of the data pin to increase a current load of the at least one ofthe pair of power pins.

In some embodiments, a recess is defined in the expanded portion at aposition that is close to the head end of the partition piece.

In some embodiments, the expanded portion may be located in the middleof the at least one of the pair of power pins.

In some embodiments, the expanded portion may have a cross-sectionalarea S, and the cross-sectional area S satisfies: S≥0.09805 mm².

In some embodiments, each of the pair of power pins may have a thicknessD, and the thickness D satisfies: 0.1 mm≤D≤0.3 mm.

In some embodiments, each of the pair of power pins may have a contactsurface configured to be electrically connected to a power adapter. Thecontact surface may have a width W in a width direction of each of thepair of sub-pins, and the width W satisfies: 0.24 mm≤W≤0.32 mm.

In some embodiments, the power interface is a USB Type-C interface.

According to another aspect, a mobile terminal is further provided. Themobile terminal may include a circuit board, a housing, at least onepower-pin assembly, and a partition piece. The at least one power-pinassembly may be arranged in the housing and configured to be connectedto the circuit board. Each of the at least one power-pin assembly mayinclude a pair of power pins spaced apart from each other. The partitionpiece may be sandwiched between the pair of power pins and include atail end and a head end. The tail end may be connected to the circuitboard, and spaced apart from the housing and connected to the at leastone power-pin assembly. The head end may be away from the circuit boardand opposite to the tail end.

In some embodiments, the mobile terminal may be a mobile phone, a tabletcomputer or a laptop.

According to a further aspect, an electronic device may be provided. Theelectronic device may include a circuit board and a power interfaceconfigured to be connected to the circuit board. The power interface mayinclude a housing, at least one power-pin assembly, a partition piece,and an insulation layer. The at least one power-pin assembly may bearranged in the housing and configured to be connected to the circuitboard. Each of the at least one power-pin assembly may include a pair ofpower pins spaced apart from each other. The partition piece may besandwiched between the pair of power pins, and different from the pairof power pins. The partition piece may include a tail end and a headend. The tail end may be connected to the circuit board, and spacedapart from the housing and connected to the at least one power-pinassembly. The head end may be away from the circuit board and oppositeto the tail end. The insulation layer may be sandwiched between thepartition piece and each of the pair of power pins, such that thepartition piece and the at least one power-pin assembly are insulatedfrom each other by the insulation layer.

Hereafter, the term “up-down direction” used in the present disclosuremay refer to a width direction of the power interface 100. The term“left-right direction” used in the present disclosure may refer to alength direction of the power interface 100. The term “front-reardirection” used in the present disclosure may refer to a heightdirection of the power interface 100. It will be appreciate that thedirections defined here are only for explanation, not for limitation.

In the following, a power interface 100 may be will be described inembodiments of the present disclosure with reference to FIGS. 1-11. Itshould be understood that, the power interface 100 may include aninterface configured for charging or data transmission, and may bearranged in a mobile terminal such as a mobile phone, a tablet computer,a laptop, or any other suitable mobile terminal having a rechargeablefunction. The power interface 100 may be electrically connected to acorresponding power adapter to achieve a communication of electricalsignals and data signals.

Referring to FIGS. 1-11, the power interface 100 according to anembodiment of the present disclosure may include a housing 1, aconnection body 2, and a partition piece 23.

More specifically, the connection body 2 may be arranged in the housing1. The connection body 2 may be configured to be connected to a circuitboard 25, and may include at least one power-pin assembly 21. In thisembodiment, each power-pin assembly may include a pair of power pins 21spaced apart from each other in the up-down direction (the up-downdirection as shown in FIG. 1). The partition piece 23 may be sandwichedbetween the two power pins 211, and configured to support the power pins211. Besides, the partition piece 23 may be separated from the pair ofpower pins 211, that is to say, a gap may be formed between thepartition piece 23 and the pair of power pins 211. Therefore, it ispossible to avoid poor contact between a connecting line and the powerinterface 100 caused by the movement of the pair of power pins 211 whichare spaced apart from each other in the up-down direction towards eachother when the connection line is inserted into the power interface. Inthis way, it is possible to ensure the reliability of the connectionbetween the connection line and the power interface 100.

The partition piece 23 may have a head end 23 a close to a front end ofthe power pin 21 (the front end as shown in FIG. 1), a tail end 23 bclose to a rear end of the power pin 21 (the rear end as shown in FIG.1), and a connection portion 23 c connected between the head end 23 aand the tail end 23 b. More specifically, the tail end 23 b may be theone connected to the circuit board 25, and the head end 23 a may be theone away from the circuit board 25 and opposite to the tail end 2.

The tail end 23 b may be spaced apart from the housing 1 and connectedto the connection body 2. When designing the tail end 23 b being spacedapart from the housing 1, it is possible to avoid producing interferencewith antenna signals, and thus the quality and the speed of signaltransmission may be improved. In addition, both the tail end 23 b andthe housing 1 may be connected to the connection body 2. In this way,the partition piece 23, the housing 1, and the connection body 2 may beconnected to each other, thereby improving the reliability of theconnection among the partition piece 23, the housing 1, and theconnection body 2.

It should be noted that, the power interface 100 may be arranged on amobile terminal, and a battery can be arranged inside the mobileterminal (e.g., a mobile phone, a tablet computer, a notebook computer,etc.). The battery may be charged by an external power source via thepower interface 100.

In the power interface 100 of the embodiment of the present disclosure,by spacing apart the tail end 23 b of the partition piece 23 from thehousing 1 and connecting the tail end 23 b of the partition piece 23 tothe connection body 2, it is possible to avoid producing interferencewith antenna signals, and thus the quality and the speed of signaltransmission may be improved. In addition, both the tail end 23 b andthe housing 1 may be connected to the connection body 2. In this way,the partition piece 23, the housing 1, and the connection body 2 may beconnected to each other, thereby improving the reliability of theconnection among the partition piece 23, the housing 1, and theconnection body 2.

In some embodiments of the present disclosure, as shown in FIG. 1 andFIG. 5, a first pad 251 and a second pad 252 spaced apart from eachother may be arranged on the circuit board 25. The housing 1 may bewelded on the first pad 251, and the tail end 23 b may be welded on thesecond pad 252. In this way, the housing 1 and the partition piece 23may be connected to the circuit board 25, thereby firmly fixing theconnection body 2 to the circuit board 25 and preventing the power pins211 of the connection body 2 from falling off the circuit board 25, andthus the reliability of the operation of the power interface 100 may beensured.

More specifically, the housing 1 may include a connected end 12configured to connected to the circuit board 25. The connected end 12may be substantially parallel to the tail end 23 b of the partitionpiece 23, and spaced apart from the tail end 23 b. The connected end 12may be welded on the first pad 251.

In some embodiments of the present disclosure, as shown in FIG. 2, atleast one power pin 211 may include an expanded portion 2111. Theexpanded portion 2111 may have a cross-sectional area larger than thatof a data pin 22 of the connection body 2. In this way, the current loadof the power pins 211 may be increased, and the transmission speed ofthe current may be improve. In this way, the power interface 100 mayhave a fast charging function, thereby improving the charging efficiencyof the battery.

Optionally, as shown in FIG. 11, the cross-sectional area of theexpanded portion 2111 may be defined as S, and S≥0.09805 mm². It hasbeen experimentally verified that when S≥0.09805 mm², the current loadof the power pins 211 may be at least 10 A. Therefore, the chargingefficiency can be improved by increasing the current load of the powerpins 211. After further tests, when S=0.13125 mm², the current load ofthe power pins 211 may be 12 A or more, which can improve chargingefficiency.

Furthermore, as shown in FIG. 11, a thickness of the power pin 211 maybe defined as D, and 0.1 mm≤D≤0.3 mm. It has been experimentallyverified that when 0.1 mm≤D≤0.3 mm, the current load of the power pins211 is at least 10 A. In this way, it is possible to improve thecharging efficiency by increasing the current load of the power pins211. After further tests, when D=0.25 mm, the current load of the powerpins 211 may be greatly increased, and the current load of the powerpins 211 is 12 A or more, thereby improving the charging efficiency.

Referring to FIGS. 9-11, each power pin 211 may have a contact surfaceconfigured to be electrically connected to the power adapter. In a widthdirection of the power pin 211 (i.e. the left-right direction shown inFIG. 6), a width of the contact surface may be defined as W, which meets0.24 mm≤W≤0.32 mm. It has been experimentally verified that when 0.24mm≤W≤0.32 mm, the current load of the power pin 211 is at least 10 A. Inthis way, it is possible to improve the charging efficiency byincreasing the current load of the power pins 211. After further tests,when W=0.25 mm, the current load of the power pin 211 may be greatlyincreased, and the current load of the power pins 211 is 12 A or more,thereby improving the charging efficiency.

According to some embodiments of the present disclosure, referring toFIG. 2, the expanded portion 2111 may be located in the middle of thepower pin 211. In this way, the arrangement of the power pins 211 andthe data pins 22 may be optimized, and the space of the power interface100 may be fully utilized. Therefore, the compactness and therationality of the configuration of the power interface 100 may beimproved.

Furthermore, as shown in FIG. 2, a recess 2112 may be defined in theexpanded portion 2111 at a position that is close to the front end ofthe power pin 211. It should be noted that, when the power interface 100performs the fast charging function, the power pin 211 with the expandedportion 2111 may be used to carry a large charging current. When thepower interface 100 performs the normal charging function, the recess2112 defined in the expanded portion 2111 may prevent the power pin 211from getting into contact with a corresponding pin of a power adapter.In this way, the power interface 100 in this embodiment may be appliedto different power adapters. For example, when the power interface 100performs the fast charging function, the power interface 100 may beelectrically connected to a corresponding power adapter with the fastcharging function. When the power interface 100 performs the normalcharging function, the power interface 100 may be electrically connectedto a corresponding normal power adapter. It should be noted that, thefast charging function herein may refer to a charging state in which thecharging current is greater than or equal to 2.5 A, and the normalcharging may refer to a charging state in which the charging current isless than 2.5 A.

In some embodiments of the present disclosure, as shown in FIGS. 1 and 5and 6, the power interface 100 may further include an encapsulationmember 24, and the partition piece 23 and the connection body 2 may bewrapped by the encapsulation member 24, such that the partition piece 23may be insulated from the connection body 2 by the encapsulation member24. That is to say, at least parts of the encapsulation member 24 may bedisposed between the partition piece 23 and each of the pair of powerpins 211.

More specifically, the encapsulation member 24 may be made ofelectrically insulative and heat-conductive material. The encapsulationmember 24 may be configured to fix the partition piece 23, the power-pinassembly 21 and the data pins 22 of the connection body 2, therebyensuring the reliability of the connection between the connection lineof the power adapter and the power interface 100. The encapsulationmember 24 may include a first encapsulation portion 241 and a secondencapsulation portion 242 connected to first encapsulation portion 241.More specifically, the first encapsulation portion 241 may be embeddedinto the second encapsulation portion 242. The first encapsulationportion 241 and the second encapsulation portion 242 may match with andcooperate with each other. More specifically, the second encapsulationportion 242 may define a plurality of receiving groove 2421, and aplurality of embedding protrusions 2411 may be arranged on the firstencapsulation portion 241. The plurality of receiving grooves 2421 maybe in one-to-one correspondence with the plurality of embeddingprotrusions 2411, and cooperate with the plurality of embeddingprotrusions 2411. In this way, the reliability of the connection betweenthe first encapsulation portion 241 and the second encapsulation portion242 may be improved.

As shown in FIG. 3, at least one of the head end 23 a and the tail end23 b may define a through hole 231, and a reinforcing rib 232 may bearranged in the through hole 231. In this way, it is possible to notonly save the material of the partition piece 23, but also improve thestructural strength of the partition piece 23 by arranging thereinforcing rib 232 in the through hole 231.

In some embodiments of the present disclosure, as shown in FIG. 3, thereinforcing rib 232 may extend in the left-right direction. In this way,the structural strength of the partition piece 23 may be enhanced. Ofcourse, the present disclosure may not be limited thereto. For example,the reinforcing rib 232 may extend in the front-rear direction, or anextending direction of the reinforcing rib 232 may be at an angle to theleft-right direction, as long as the structural strength of thepartition piece 23 may be enhanced.

In some embodiments of the present disclosure, as shown in FIG. 3, areinforcing protrusion 233 that protrudes away from the connection body2 may be arranged at the head end 23 a. More specifically, thereinforcing protrusion 233 may protrudes from an outer surface of thehead end 23 a in a direction away from a center of the power interface.The reinforcing protrusion 233 may increase area of the contact surfacebetween the partition piece 23 and the encapsulation member 24, enhancethe adhesion between the partition piece 23 and the encapsulation member24, and make the connection between the partition piece 23 and theencapsulation member 24 more stable. In this way, the partition piece 23and the connection body 2 may be better fixed together by theencapsulation member 24.

Alternatively, as shown in FIG. 3, herein, the outer surface may includea side wall face 230 a and a front end face 230 b. Therefore, thereinforcing protrusion 233 may be located on at least one of a side wallface 230 a and a front end face 230 b of the head end 23 a. For example,in the example shown in FIG. 3, the front end face of the head end 23 amay be provided with the reinforcing protrusion 233, and the left-sidewall face of the head end 23 a may be also provided with the reinforcingprotrusion 233. In this way, it is possible to increase the contactsurface between the partition piece 23 and the encapsulation member 24,enhance the adhesion between the partition piece 23 and theencapsulation member 24, and make the connection between the partitionpiece 23 and the encapsulation member 24 more stable. In this way, thepartition piece 23 and the connection body 2 may be better fixedtogether by the encapsulation member 24.

As shown in FIG. 3, in order to increase the flexibility of thepartition piece 23, a notch 234 may be defined in the connection portion23 c of the partition piece 23. Optionally, the notch 234 in someembodiments may be defined in the middle of the partition piece 23. Inthis way, when the partition piece 23 is shifted upwardly or downwardly,the partition piece 23 may quickly return back to the original positiondue to the notch 234, which facilitates the connection between theconnection line of the power adapter and the power interface 100 nexttime.

In some embodiments of the present disclosure, as shown in FIG. 3, acrimping 235 may be arranged at the tail end 23 b, and the crimping 235may be bent in a direction towards one of the pair of power pins 211.Therefore, one of the pair of power pins 211 may be configured to bewrapped by the crimping 235. On one hand, the crimping 235 may increasethe contact surface between the partition piece 23 and the encapsulationmember 24, enhance the adhesion between the partition piece 23 and theencapsulation member 24, and make the connection between the partitionpiece 23 and the encapsulation member 24 more stable, thereby betterfixing the partition piece 23 and the connection body 2 together by theencapsulation member 24. On the other hand, the crimping 235 may providea protection to the power-pin assembly 21.

In addition, as shown in FIG. 3, the tail end 23 b may also define athrough hole 231. In this way, it is possible to further save thematerial of the partition piece 23. Of course, in order to ensure thestructural strength of the partition piece 23, a reinforcing rib 232 mayalso be arranged in the through hole 231.

In some embodiments of the present disclosure, as shown in FIG. 4, FIG.5, FIG. 7, and FIG. 8, a first stopping plate 11 may be arranged in thehousing 1, and an engaging flange 2422 may be arranged on the secondencapsulation portion 242 of the encapsulation member 24. The powerinterface 100 may further include a second stopping plate 3. In thiscase, the second stopping plate 3 may be arranged in the housing 1,connected to the housing 1, and spaced apart from the first stoppingplate 11. The engaging flange 2422 may be sandwiched between the firststopping plate 11 and the second stopping plate 3. In this way, theencapsulation member 24 together with the connection body 2 wrapped bythe encapsulation member 24 may be fixed in the housing 1 by the firststopping plate 11 and the second stopping plate 3, and the connectionbody 2 may be prevented from moving in the up-down direction of thehousing 1 to prevent the connection body 2 from being separated from thehousing 1. Therefore, when the connection line of the power adapter isinserted into the power interface 100, the reliability of the connectionbetween the connection line and the power interface 100 may be improved.

Optionally, the housing 1 and the second stopping plate 3 may be made ofmetal, and the second stopping plate 3 may be welded on the housing 1.The housing 1 and the second stopping plate 3 made of metal may have agreat structural strength. In this way, it is possible to enhance thestructural strength of the power interface 100, and the power interface100 may be prevented from being deformed after a long time of use orafter frequent insertion and removal. In addition, since the inner spaceof the housing 1 is limited, when the second stopping plate 3 is weldedon the housing 1, it is possible to simplify the processing andassembling processes, shorten manufacturing cycles, and reduce themanufacturing cost.

Optionally, the second stopping plate 3 may be made of stainless steel.In this way, it is possible to avoid the second stopping plate 3 fromrusting, and thus the poor contact of the connection body 2 with thepower adapter due to the rusting of the second stopping plate 3 may beprevented from occurring. Therefore, the reliability of the operation ofthe power interface 100 may be ensured.

In some embodiments of the present disclosure, as shown in FIG. 8, a gap31 may be defined between the second stopping plate 3 and the housing 1,and an adhesive layer may be arranged in the gap 31. On one hand, theadhesive layer may further bond the second stopping plate 3 with thehousing 1, to improve the reliability of the connection between thesecond stopping plate 3 and the housing 1. On the other hand, theadhesive layer may have a waterproof function; that is, the adhesivelayer may prevent liquid from entering the power interface 100 via anopen end of the power interface 100 and damaging of the circuit board 25inside the power interface 100, and the like, thereby ensuring thereliability of the power interface 100.

More specifically, the adhesive layer may be a dispensing layer.Dispensing is a process in which electronic glue, oil or other liquidmay be applied to a product by means of painting, potting, or dripping,to allow the product to be adhesive, potted, insulated, fixed, and havea smooth surface. On one hand, the dispensing layer may further bond thesecond stopping plate 3 with the housing 1 to improve the reliability ofthe connection between the second stopping plate 3 and the housing 1. Onthe other hand, the dispensing layer may have a waterproof function;that is, the dispensing layer may prevent liquid from entering the powerinterface 100 via an open end of the power interface 100 and damaging ofthe circuit board 25 inside the power interface 100, and the like,thereby ensuring the reliability of the power interface 100.

In some embodiments of the present disclosure, as shown in FIGS. 4-7,the second stopping plate 3 may extend in a circumferential direction ofthe encapsulation member 24. On one hand, it is possible to improve thereliability of the connection between the second stopping plate 3 andthe housing 1; on the other hand, it is also possible to enhance thefixing of the encapsulation member 24 and the connection body 2 by thesecond stopping plate 3. In this way it is possible to ensure that theencapsulation member 24 and the connection body 2 is securely fixed inthe housing 1, and improve the reliability of the connection between apower line of the power adapter and the power interface 100.

Optionally, a plurality of second stopping plate 3 may be provided,thereby facilitating the processing of the second stopping plate 3. Itshould be noted that, the plurality of second stopping plates 3 may bespaced apart from each other along the circumferential direction of thehousing 1, and the plurality of second stopping plates 3 may also forman annular stopping plate. The plurality of second stopping plates 3 maybe respectively connected to the housing 1, in order to fix theconnection body 2.

In some embodiments of the present disclosure, as shown in FIGS. 4-7,the first stopping plate 11 may also extend in the circumferentialdirection of the encapsulation member 24. In this way, it is possible toenhance the fixing of the encapsulation member 24 and the connectionbody 2 by the first stopping plate 11. Optionally, a stopping protrusion111 may be arranged on a sidewall surface of the first stopping plate 11that faces towards the second stopping plate 3. An engaging groove 2423may be defined in the engaging flange 2422. The stopping protrusion 111may be engaged with the engaging groove 2423. In this way, the firststopping plate 11 and the second stopping plate 3 may prevent theconnection body 2 from moving in the up-down direction in the housing 1,and may also prevent the connection body 2 from shaking in the housing 1by the cooperation between the engaging flange 2422 and the stoppingprotrusion 111, and thus it is possible to ensure the reliability of theoperation of the power interface 100.

Referring to FIGS. 1-11, the power interface 100 according toembodiments of the present disclosure is described in details. It isnoted that, the following description only is exemplary, and is notlimitation to the present disclosure.

For convenience to describe, an example where the power interface 100 isimplemented as a Type-C interface is described. The Type-C interface mayalso be called an USB Type-C interface. The Type-C interface belongs toa type of an interface, and is a new data, video, audio and powertransmission interface specification developed and customized by the USBstandardization organization to solve the drawbacks present for a longtime that the physical interface specifications of the USB interface areuniform, and that the power can only be transmitted in one direction.

The Type-C interface may have the following features: a standard devicemay declare its willing to occupy a VBUS (that is, a positive connectionwire of a traditional USB) to another device through a CC (ConfigurationChannel) pin in the interface specification. The device having astronger willing may eventually output voltages and currents to theVBUS, while the other device may accept the power supplied from the VBUSbus, or the other device may still refuse to accept the power; however,it does not affect the transmission function. In order to use thedefinition of the bus more conveniently, a Type-C interface chip (suchas LDR6013) may generally classify devices into four types: DFP(Downstream-facing Port), Strong DRP (Dual Role Power), DRP, and UFP(Upstream-facing Port). The willingness of these four types to occupythe VBUS bus may gradually decrease.

The DFP may correspond to an adapter, and may continuously outputvoltages to the VBUS. The Strong DRP may correspond to a mobile power,and may give up outputting voltages to the VBUS only when the strong DRPencounters the adapter. The DRP may correspond to a mobile phone.Normally, the DRP may expect other devices to supply power to itself.However, when encountering a device that may have a weaker willingness,the DRP may also output the voltages and currents to the device. The UFPwill not output electrical power externally. Generally, the UFP is aweak battery device, or a device without any batteries, such as aBluetooth headset. The USB Type-C interface may support the insertionsboth from a positive side and a negative side. Since there are fourgroups of power sources and grounds on both sides (the positive side andthe negative side), the power supported by USB Type-C interface may begreatly improved.

The power interface 100 in this embodiment may be a USB Type-Cinterface, which may be applied to a power adapter with the fastcharging function, or a normal power adapter. The fast charging hereinmay refer to a charging state in which a charging current is greaterthan or equal to 2.5 A. The normal charging herein may refer to acharging state in which the charging current is less than 2.5 A. Thatis, when the power interface 100 is charged by the power adapter withthe fast charging function, the charging current is greater than orequal to 2.5 A, or the rated output power is no less than 15 W. When thepower interface 100 is charged by the normal power adapter, the chargingcurrent is less than 2.5 A, or the rated output power is less than 15 W.

More specifically, as shown in FIGS. 1-8, the power interface 100 mayinclude a housing 1, a connection body 2, a partition piece 23, and anencapsulation member 24. The connection body 2 may be arranged in thehousing 1, configured to be connected to the circuit board 25, and mayinclude four power-pin assemblies 21. Each power-pin assembly 21 mayinclude two power pins 21 spaced apart from each other in the up-downdirection. The partition piece 23 may be sandwiched between the twopower pins 211, such that it is possible to avoid poor contact betweenthe connecting line and the power interface 100 caused by the movementof the two power pins 211 which are spaced apart from each other in theup-down direction towards each other. The partition piece 23 and theconnection body 2 may be wrapped by the encapsulation member 24.

In this case, the encapsulation member 24 may be made of electricallyinsulative and heat-conductive material. The encapsulation member 24 maybe configured to fix the partition piece 23, the power-pin assemblies 21and the data pins 22 of the connection body 2, thereby ensuring thereliability of the connection between the connection line of the poweradapter and the power interface 100. As shown in FIGS. 1, 5 and 6, theencapsulation member 24 may include a first encapsulation portion 241and a second encapsulation portion 242 connected to first encapsulationportion 241. The first encapsulation portion 241 may be embedded intothe second encapsulation portion 242 in this embodiment. The secondencapsulation portion 242 may define a plurality of receiving groove2421, and the first encapsulation portion 241 may include a plurality ofembedding protrusions 2411. The plurality of receiving grooves 2421 maybe in one-to-one correspondence with the plurality of embeddingprotrusions 2411, and cooperate with the plurality of embeddingprotrusions 2411. In this way, the reliability of the connection betweenthe first encapsulation portion 241 and the second encapsulation portion242 may be improved.

As shown in FIG. 3, the partition piece 23 may have a head end 23 aclose to a front end of the power-pin assembly 21, a tail end 23 b closeto a rear end of the power-pin assembly 21, and a connection portion 23c connected between the head end 23 a and the tail end 23 b. Morespecifically, the tail end 23 b may be the one connected to the circuitboard 25, and the head end 23 a may be the one away from the circuitboard 25 and opposite to the tail end 2. The head end 23 a may define athrough hole 231, and a reinforcing rib 232 may be arranged in thethrough hole 231. The reinforcing rib 232 may extend in the left-rightdirection. In this way, the material of the partition piece 23 may besaved, and the structural strength of the partition piece 23 may beenhanced. The head end 23 a and the left-side wall face may have areinforcing protrusion 233 that protrudes away from the connection body2. The reinforcing protrusion 233 may increase the area of the contactsurface between the partition piece 23 and the encapsulation member 24,enhance the adhesion between the partition piece 23 and theencapsulation member 24, and make the connection between the partitionpiece 23 and the encapsulation member 24 more stable. In this way, thepartition piece 23 and the connection body 2 may be better fixedtogether by the encapsulation member 24.

As shown in FIG. 3, a notch 234 may be defined in the connection portion23 c of the partition piece 23. Optionally, the notch 234 in someembodiments may be defined in the middle of the partition piece 23. Inthis way, when the partition piece 23 is shifted upwardly or downwardly,the partition piece 23 may quickly return back to the original position.A crimping 235 may be arranged at the tail end 23 b, the crimping 235may be bent in a direction towards one of the pair of power pins 211.Therefore, one of the pair of power pins 211 may be configured to bewrapped by the crimping 235. The crimping 235 may increase the contactsurface between the partition piece 23 and the encapsulation member 24,and provide a protection to the power-pin assembly 21. The tail end 23 bmay have a widened portion 236, and the widened portion 236 may define athrough hole 231, which further saves the material of the partitionpiece 23.

In addition, as shown in FIG. 1, FIG. 5 and FIG. 6, the tail end 23 bmay be spaced apart from the housing 1 and connected to the connectionbody 2. In this way, it is possible to avoid producing interference withthe antenna signals, and thus the quality and the speed of signaltransmission may be improved. A first pad 251 and a second pad 252spaced apart from each other may be arranged on the circuit board 25.The housing 1 may be welded on the first pad 251, and the tail end 23 bmay be welded on the second pad 252. In this way, the housing 1 and thepartition piece 23 may be connected to the circuit board 25, therebyfirmly fixing the connection body 2 to the circuit board 25 andpreventing the power-pin assembly 21 of the connection body 2 fromseparating from the circuit board 25, and thus the reliability of theoperation of the power interface 100 may be ensured.

As shown in FIG. 2, at least one power pin 211 may include an expandedportion 2111. The expanded portion 2111 may have a cross-sectional arealarger than that of a data pin 22 of the connection body 2. In this way,the current load of the power pins 211 may be increased, and thetransmission speed of the current may be improve. A recess 2112 may bedefined in the expanded portion 2111 at a position that is close to thefront end of the power pin 211. When the power interface 100 performsthe fast charging function, the power pin 211 with the expanded portion2111 may be used to carry a large charging current. When the powerinterface 100 performs the normal charging function, the recess 2112 onthe expanded portion 2111 may prevent the power pin 211 from gettinginto contact with a corresponding pin of a power adapter.

In this case, as shown in FIG. 11, a thickness of the power pin 211 maybe defined as D, and the cross-sectional area of the expanded portion2111 may be defined as S. It has been experimentally verified that, whenD=0.25 mm and S=0.13125 mm², the current load of the power pins 211 isat least 12 A, thereby improving the charging efficiency. Furthermore,as shown in FIG. 11, when W=0.25 mm, the current load of the power pins211 is at least 14 A, thereby improving the charging efficiency.

Furthermore, as shown in FIGS. 4-8, a first stopping plate 11 may bearranged in the housing 1, and an engaging flange 2422 may be arrangedon the second encapsulation portion 242. The power interface 100 mayfurther include a second stopping plate 3. The second stopping plate 3may be arranged in the housing 1, connected to the housing 1, and spacedapart from the first stopping plate 11. The engaging flange 2422 may besandwiched between the first stopping plate 11 and the second stoppingplate 3. In this way, the second encapsulation portion 242 may be fixedin the housing 1 by the first stopping plate 11 and the second stoppingplate 3, thereby fixing the connection body 2 in the housing 1, andpreventing the connection body 2 from moving in the up-down direction ofthe housing 1.

In this case, the first stopping plate 11 and the second stopping plate3 may be made of metal, and the second stopping plate 3 may be made ofstainless steel. The second stopping plate 3 may be connected to thehousing 1 by means of spot welding. The housing 1 and the secondstopping plate 3 made of metal may have a great structural strength. Inthis way, it is possible to enhance the structural strength of the powerinterface 100. In addition, since the inner space of the housing 1 islimited, when the second stopping plate 3 is welded on the housing 1, itis possible to simplify the processing and assembling processes, shortenmanufacturing cycles, and reduce the manufacturing cost. A gap 31 may bedefined between the second stopping plate 3 and the housing 1, and adispensing layer may be arranged in the gap 31. On one hand, thedispensing layer may further bond the second stopping plate 3 with thehousing 1 to improve the reliability of the connection between thesecond stopping plate 3 and the housing 1. On the other hand, thedispensing layer may have a waterproof function; that is, the dispensinglayer may prevent liquid from entering the power interface 100 via anopen end of the power interface 100 and damaging of the circuit board 25inside the power interface 100, and the like, thereby ensuring thereliability of the power interface 100. In this embodiment, a pair ofsecond stopping plates 3 may be provided. The pair of second stoppingplates 3 may extend in the circumferential direction of the housing 1.The pair of second stopping plates 3 may form an annular stopping plate.In this way, the reliability of the connection between the secondstopping plate 3 and the housing 1 may be enhanced, and the structure ofthe second stopping plate 3 may be simplified.

The first stopping plate 11 may also extend in the circumferentialdirection of the connection body 2. In this way, it is possible toenhance the fixing of the connection body 2 by the first stopping plate11. A stopping protrusion 111 may be arranged on a sidewall surface ofthe first stopping plate 11 that faces towards the second stopping plate3, and the stopping protrusion 111 may be engaged with engaging groove2423 defined in the engaging flanges 2422. In this way, it is possibleto prevent the connection body 2 from shaking in the housing 1 by thecooperation between the engaging flange 2422 and the stopping protrusion111, and thus it is possible to ensure the reliability of the operationof the power interface 100.

A method for manufacturing the power interface 100 according to anembodiment of the present disclosure will now be described withreference to FIGS. 1-11. Herein, the power interface 100 may be thepower interface 100 described above.

The method for manufacturing the power interface 100 according to anembodiment of the present disclosure may include operations at thefollowing blocks:

At block S10: processing the housing 1.

At block S20: mounting the connection body 2 into the housing 1.

At block S30: welding the second stopping plate 3 on an inner wall ofthe housing 1.

According to the method for manufacturing the power interface 100 of theembodiment of the present disclosure, the connection body 2 may be fixedin the housing 1, thereby ensuring the reliability of the operation ofthe power interface 100.

The housing 1 at the block S10 may be an injection molded part, and thefirst stopping plate 11 may be injected on the inner wall of the housing1, which may facilitate the processing of the housing 1 and the firststopping plate 11. At the block S30, the second stopping plate 3 may beconnected to the housing 1 by means of spot welding. The spot weldingmay be a quick and economical connection method in which the weldmentsmay be welded to each other on the contact surface at the joint betweenthe weldments by individual welding spots.

Furthermore, a gap 31 may be defined between the second stopping plate 3and the housing 1. The method for manufacturing the power interface 100may further include: arranging an adhesive layer in the gap 31, suchthat the second stopping plate 3 and the housing 1 may be closely bondedwith each other, and liquid may be prevent from entering the powerinterface 100.

A mobile terminal according to an embodiment of the present disclosuremay include the power interface 100 as described above. The mobileterminal may realize the transmission of electrical signals and datasignals via the power interface 100. For example, the mobile terminalmay be electrically connected to the power adapter through the powerinterface 100 to implement a charging or data transmission function.

More specifically, in some embodiments, the mobile terminal may includea circuit board 25, a housing 1, at least one power-pin assembly 21, anda partition piece 23. The at least one power-pin assembly 21 may bearranged in the housing 1 and configured to be connected to the circuitboard 25. Each of the at least one power-pin assembly 21 may include apair of power pins 211 spaced apart from each other. The partition piece23 may be sandwiched between the pair of power pins 211, and include atail end 23 b connected to the circuit board 25 and a head end 23 a awayfrom the circuit board 25 and opposite to the tail end 2 b. The tail end23 b is spaced apart from the housing 1 and connected to the at leastone power-pin assembly 21.

In some embodiments, a reinforcing protrusion 233 protrudes from anouter surface of the head end 23 a in a direction away from a center ofthe power interface 100. At least one of the tail end 23 b and the headend 23 a defines a through hole 231, and a reinforcing rib 232 isarranged in the through hole 231.

In some embodiments, the partition piece 23 may include a connectionportion 23 c connected between the head end 23 a and the tail end 23 b.A notch 234 may be defined in the connection portion 23 c. A crimping235 may be arranged at the tail end 23 b, and the crimping 235 may bebent in a direction towards one of the pair of power pins 211.

In some embodiments, at least one of the pair of power pins 211 mayinclude an expanded portion 2111, and the expanded portion 2111 has across-sectional area larger than that of any portion of a data pin 25. Arecess 2112 is defined in the expanded portion 2111 at a position thatis close to the head end 23 a of the partition piece 23.

In some embodiments, the mobile terminal may further include anencapsulation member 24. The encapsulation member 24 may be configuredto wrap the partition piece 23 and the at least one power-pin assembly21 of the connection body 2, such that the partition piece 23 isinsulated from the at least one power-pin assembly 21 of the connectionbody 2 by the encapsulation member 24.

In some embodiments, the encapsulation member 24 may include a firstencapsulation portion 241 and a second encapsulation portion 241. Thefirst encapsulation portion 241 may be embedded into the secondencapsulation portion 242. The second encapsulation portion 242 maydefine a plurality of receiving groove 2421, and a plurality ofembedding protrusions 2411 may be arranged on the first encapsulationportion 241. The plurality of receiving grooves 2421 may be inone-to-one correspondence with the plurality of embedding protrusions2422.

In some embodiments, the mobile terminal may further include a firststopping plate 11 and a second stopping plate 3 arranged in the housing1 and spaced apart from each other. An engaging flange 2422 may bearranged on the second encapsulation portion 242, and sandwiched betweenthe first stopping plate 11 and the second stopping plate 3.

In some embodiments, a first pad 251 and a second pad 252 spaced apartfrom each other may be arranged on the circuit board 25. The housing 1may be welded on the first pad 251, and the tail end 23 b may be weldedon the second pad 252.

In the mobile terminal according to an embodiment of the presentdisclosure, by spacing apart the tail end 23 b of the partition piece 23from the housing 1 and connecting the tail end 23 b of the partitionpiece 23 to the connection body 2, it is possible to avoid producinginterference with antenna signals, and thus the quality and the speed ofsignal transmission may be improved. In addition, both the tail end 23 band the housing 1 may be connected to the connection body 2. In thisway, the partition piece 23, the housing 1, and the connection body 2may be connected to each other, thereby improving the reliability of theconnection among the partition piece 23, the housing 1, and theconnection body 2.

A power adapter according to an embodiment of the present disclosure mayinclude the power interface 100 as described above. The power adaptermay realize the transmission of electrical signals and data signals viathe power interface 100.

More specifically, in some embodiments, the power adapter may include acircuit board 25 and a power interface 100. The power interface 100 maybe configured to be connected to the circuit board 25. The powerinterface 100 may include a housing 1, at least one power-pin assembly21, and a partition piece 23. The at least one power-pin assembly 21 maybe arranged in the housing 1 and configured to be connected to thecircuit board 25. Each of the at least one power-pin assembly 21 mayinclude a pair of power pins 211 spaced apart from each other. Thepartition piece 23 may be sandwiched between the pair of power pins 211,and include a tail end 23 b connected to the circuit board 25 and a headend 23 a away from the circuit board 25 and opposite to the tail end 2b. The tail end 23 b is spaced apart from the housing 1 and connected tothe at least one power-pin assembly 21.

In some embodiments, a reinforcing protrusion 233 protrudes from anouter surface of the head end 23 a in a direction away from a center ofthe power interface 100. At least one of the tail end 23 b and the headend 23 a defines a through hole 231, and a reinforcing rib 232 isarranged in the through hole 231.

In some embodiments, the partition piece 23 may include a connectionportion 23 c connected between the head end 23 a and the tail end 23 b.A notch 234 may be defined in the connection portion 23 c. In someembodiments, a crimping 235 may be arranged at the tail end 23 b, andthe crimping 235 is bent in a direction towards one of the pair of powerpins 211.

In some embodiment, the encapsulation member 24 may include a firstencapsulation portion 241 and a second encapsulation portion 241. Thefirst encapsulation portion 241 may be embedded into the secondencapsulation portion 242. The second encapsulation portion 242 maydefine a plurality of receiving groove 2421, and a plurality ofembedding protrusions 2411 may be arranged on the first encapsulationportion 241. The plurality of receiving grooves 2421 may be inone-to-one correspondence with the plurality of embedding protrusions2422.

In the power adapter according to an embodiment of the presentdisclosure, by spacing apart the tail end 23 b of the partition piece 23from the housing 1 and connecting the tail end 23 b of the partitionpiece 23 to the connection body 2, it is possible to avoid producinginterference with antenna signals, and thus the quality and the speed ofsignal transmission may be improved. In addition, both the tail end 23 band the housing 1 may be connected to the connection body 2. In thisway, the partition piece 23, the housing 1, and the connection body 2may be connected to each other, thereby improving the reliability of theconnection among the partition piece 23, the housing 1, and theconnection body 2.

In a further aspect, an electronic device may be further provide. Theelectronic device may include the power interface 100 as describedabove.

More specifically, in some embodiments, the electronic device mayinclude a circuit board 25 and a power interface 100. The powerinterface 100 may be configured to be connected to the circuit board 25.The power interface 100 may include a housing 1, at least one power-pinassembly 21, and a partition piece 23. The at least one power-pinassembly 21 may be arranged in the housing 1 and configured to beconnected to the circuit board 25. Each of the at least one power-pinassembly 21 may include a pair of power pins 211 spaced apart from eachother. The partition piece 23 may be sandwiched between the pair ofpower pins 211, and include a tail end 23 b connected to the circuitboard 25 and a head end 23 a away from the circuit board 25 and oppositeto the tail end 2 b. The tail end 23 b is spaced apart from the housing1 and connected to the at least one power-pin assembly 21. The powerinterface 100 may further include an insulation layer. The insulationlayer may be sandwiched between the partition piece 23 and each of thepair of power pins 211, such that the partition piece 23 and the atleast one power-pin assembly 21 may be insulated from each other by theinsulation layer.

In some embodiments, the insulation layer may be the encapsulationmember 24 described above. However, in other embodiments, the insulationlayer may also be made of insulation glue, plastic material, and thelike. Thus, the material of the insulation layer may not be limitedherein.

Reference throughout this specification, the reference terms “anembodiment”, “some embodiments”, “an example”, “a specific example”, or“some examples”, and the like means that a specific feature, structure,material, or characteristic described in connection with the embodimentor example is included in at least one embodiment or example of thepresent disclosure. Thus, the illustrative descriptions of the termsthroughout this specification are not necessarily referring to the sameembodiment or example of the present disclosure. Furthermore, thespecific features, structures, materials, or characteristics may becombined in any suitable manner in one or more embodiments or examples.In addition, one skilled in the art may combine the differentembodiments or examples described in this specification and features ofdifferent embodiments or examples without conflicting with each other.

Although explanatory embodiments have been shown and described, it wouldbe appreciated by one skilled in the art that the above embodimentspreviously described are illustrative, and cannot be construed to limitthe present disclosure. Changes, alternatives, and modifications can bemade in the embodiments without departing from scope of the presentdisclosure.

What is claimed is:
 1. A power interface, comprising: a housing; aconnection body, arranged in the housing, configured to be connected toa circuit board, and comprising at least one power-pin assembly; whereineach of the at least one power-pin assembly comprises a pair of powerpins spaced apart from each other; and a partition piece, sandwichedbetween the pair of power pins and comprising: a tail end, connected tothe circuit board and the connection body, and spaced apart from thehousing; and a head end, away from the circuit board and opposite to thetail end; wherein a reinforcing protrusion protrudes from an outersurface of the head end in a direction away from a center of the powerinterface.
 2. The power interface of claim 1, wherein the partitionpiece comprises a connection portion connected between the head end andthe tail end; a notch is defined in the connection portion.
 3. The powerinterface of claim 1, wherein a crimping is arranged at the tail end,and the crimping is bent in a direction towards one of the pair of powerpins.
 4. The power interface of claim 1, wherein at least one of thetail end and the head end defines a through hole, and a reinforcing ribis arranged in the through hole.
 5. The power interface of claim 1,further comprising an encapsulation member, wherein the partition pieceand the connection body are wrapped by the encapsulation member.
 6. Thepower interface of claim 5, wherein the encapsulation member comprises afirst encapsulation portion and a second encapsulation portion connectedto the first encapsulation portion; the second encapsulation portiondefines a plurality of receiving groove, and a plurality of embeddingprotrusions are arranged on the first encapsulation portion; theplurality of receiving grooves are in one-to-one correspondence with theplurality of embedding protrusions.
 7. The power interface of claim 6,further comprising a first stopping plate and a second stopping platearranged in the housing and spaced apart from each other; wherein anengaging flange is arranged on the second encapsulation portion, andsandwiched between the first stopping plate and the second stoppingplate.
 8. The power interface of claim 1, wherein a first pad and asecond pad spaced apart from each other are arranged on the circuitboard; the housing is welded on the first pad, and the tail end iswelded on the second pad.
 9. The power interface of claim 1, wherein theconnection body further comprises a data pin; at least one of the pairof power pins comprises an expanded portion, and the expanded portionhas a cross-sectional area larger than that of the data pin to increasea current load of the at least one of the pair of power pins.
 10. Thepower interface of claim 9, wherein a recess is defined in the expandedportion at a position that is close to the head end of the partitionpiece.
 11. A mobile terminal, comprising: a circuit board; a housing; atleast one power-pin assembly, arranged in the housing and configured tobe connected to the circuit board, wherein each of the at least onepower-pin assembly comprises a data pin and a pair of power pins spacedapart from each other; and a partition piece, sandwiched between thepair of power pins and comprising: a tail end, connected to the circuitboard and the at least one power-pin assembly, and spaced apart from thehousing; and a head end, away from the circuit board and opposite to thetail end; wherein at least one of the pair of power pins comprises anexpanded portion, and the expanded portion has a cross-sectional arealarger than that of any portion of the data pin; and a recess is definedin the expanded portion at a position that is close to the head end ofthe partition piece.
 12. The mobile terminal of claim 11, wherein areinforcing protrusion protrudes from an outer surface of the head endin a direction away from a center of the power interface; at least oneof the tail end and the head end defines a through hole, and areinforcing rib is arranged in the through hole.
 13. The mobile terminalof claim 11, wherein the partition piece comprises a connection portionconnected between the head end and the tail end; a notch is defined inthe connection portion; a crimping is arranged at the tail end, and thecrimping is bent in a direction towards one of the pair of power pins.14. The mobile terminal of claim 11, further comprising an encapsulationmember, wherein the partition piece and the at least one power-pinassembly are wrapped by the encapsulation member, such that thepartition piece and the at least one power-pin assembly are insulatedfrom each other by the encasuplation member.
 15. The mobile terminal ofclaim 14, wherein the encapsulation member comprises a firstencapsulation portion and a second encapsulation portion; the firstencapsulation portion is embedded into the second encapsulation portion;the second encapsulation portion defines a plurality of receivinggroove, and a plurality of embedding protrusions are arranged on thefirst encapsulation portion; the plurality of receiving grooves are inone-to-one correspondence with the plurality of embedding protrusions.16. The power interface of claim 15, further comprising a first stoppingplate and a second stopping plate arranged in the housing and spacedapart from each other; wherein an engaging flange is arranged on thesecond encapsulation portion, and sandwiched between the first stoppingplate and the second stopping plate.
 17. The power interface of claim11, wherein a first pad and a second pad spaced apart from each otherare arranged on the circuit board; the housing is welded on the firstpad, and the tail end is welded on the second pad.
 18. An electronicdevice, comprising: a circuit board; and a power interface configured tobe connected to the circuit board and comprising: a housing; at leastone power-pin assembly, arranged in the housing and configured to beconnected to the circuit board, wherein each of the at least onepower-pin assembly comprises a pair of power pins spaced apart from eachother; a partition piece, sandwiched between the pair of power pins,different from the pair of power pins, and comprising: a tail end,connected to the circuit board and the at least one power-pin assembly,and spaced apart from the housing; and a head end, away from the circuitboard and opposite to the tail end; and an insulation layer, sandwichedbetween the partition piece and each of the pair of power pins, suchthat the partition piece and the at least one power-pin assembly areinsulated from each other by the insulation layer; wherein at least oneof the tail end and the head end defines a through hole, and areinforcing rib is arranged in the through hole.
 19. The mobile terminalof claim 11, wherein the recess is recessed from one surface of theexpanded portion in a direction along which the pair of power pins arespaced apart from each other.
 20. The mobile terminal of claim 15,further comprising: a first stopping plate, arranged in the housing andextending in a circumferential direction of the encapsulation member;and a plurality of second stopping plates, arranged in the housing andspaced apart from each other along a circumferential direction of thehousing; the plurality of second stopping plates are spaced apart fromthe first stopping plate; wherein an engaging flange is arranged on thesecond encapsulation portion, and sandwiched between the first stoppingplate and the second stopping plate.